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Just finished to build the Anzani Y without castings. That was above my skill level which has raised considerably during this construction. Mostly is a matter of imaginative fixturing and proper work sequence. Now I am ready for a something new. Like a TWO strokes Glow (or a sparker) around...

I am about to finish the Lanz tractor. I am at the point where I want to check the engine before the final assembly because is a bear to disassemble. My question is: What is the correct phasing to be at least in the vicinity of right. At what % of the down stroke should the port close and...

I plan on finishing the wooden stand for my engine with Polyurethane but wonder if it will be dissolved by Glow Fuel.

I am done machining my Edward 5 and started the construction of the display base. The base includes the fuel and gas tanks, a drawer for all the special keys, extractor a whatnot that goes with the engine and the powering and monitor system for the 5 glow plugs. I plan to heat the plugs with...

Hy guys, there are several threads on the Edwards 5 some quite old. I opened this thread to discuss any issue without hijacking any other thread dedicated to a single topic. If you have a question, a problem, a suggestion or anything related to the subject you are welcome on this thread. I...

Engines with propeller usually have a spinner resembling 1/2 an egg. The engine is usually started with a drill driving a rubber female cone. I found the replacement rubber tip for walking canes a suitable starting part to build such driver. Is available at the drug store. Anybody has a better...

I am past half done building the Hoglet an run into problems with making the cams. I am sorry to say but the drawing on MEB magazine are incomplete, are missing several dimension in many places. Some can be easily reconstructed with intuition and geometry but still leave doubts. The cam flank...

Many folks have successfully built and run engines using Viton O-rings as piston rings. My question is: How much deformation (squeeze) between the bore and the bottom of the piston groove should be applied to have a good seal with the minimum friction? With reference to...

What criteria drive the dimension of a carburetor throath diameter? Is it fair to assume that a carb correct for a 1 cylinder 4 strokes is good for up to 4 cylinder since they intake one at the time? I suppose a minimum air speed is required to atomize and suck the fuel but too much...

This engine did run breafly when first assembled, then I decided to take it apart clean it up and reassemble it with thread-locking compound and Loctite 580 sealant around the crankcase to avoid oils seepage. This tells me there is nothing wrong with the Ignition or any major construction...

The magazine article is pretty silent about the ignition. From pictures it looks like there is only one coil and the HV wire appear to split V and feed both plugs IN PARALLEL. I do not think this arrangement is going to work. When one cylinder is in compression, the other is exhausting at near...

The plans locate the one way clutch on the chain sprocket connected to the pedal. The sprocket on the crankshaft is locked on it. This means that when the engine fires the chain and both sprockets turn at engine speed. That seems to me a lot of motion for nothing. I am considering locating the...

Malcom Stride plans/article indicates in figure 4 the cam timing diagrams as Clockwise, furthermore it specify the view from the timing belt side. The engine turns CCW when looked from the propeller (timing belt) end, the side one would face when phasing the camshaft. The picture of the two cams...

This is the Phil Dulcos OddSix 6 strokes hit&miss Next is the Upshure Boxer engine with wasted spark, no distributor Next is the Lynx work in progress Next are a few PM engineering machines actually cutting metal Last the Shop Helpers

I built the Phil Dulcos 6 strokes hit and miss. I am having problems with the missing action. The engine runs well with the hit&miss mechanism disabled. Runs fast and is not overly touchy on the needle. Spark is at TDC. The engine has run full power for about 1/2 hour. Has bounce but if rotated...

I want to build a gas tank (Coleman) with one side transparent. Copper tube, with one recessed ring, inside, to register the transparent side. What material and glue work for this application?

Not wanting to hijack the Lynx trad already going... I just receive Model Engineer magazine for 6 euros and it actually contains the drawings and the build notes. Anyway just looking at the engine picture, and considering the location of the belt tensioner, it appears that the engine is...

I am intrigued by picture of the engine featured on the header. Can someone please point to a thread discussing it?

I just finish building the display box holding the ignition and wander hat kind of finish is compatible with oil and Coleman fuel. Does Polyurethane stands up to Coleman fuel? How about Tung Oil one of my favored finish? Thanks Mauro

I completed my firs 4 stroke twin. Is an Upshur twin as presented in the Model Engine Builder Magazine Issue 7. It doesw at most 3 - 4 pops on one cylinder only. Both cylinder have low static compression but at speed I could fel a strong suction on before installing the cylinder heads. The...